<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>关于空格</title>
</head>
<body>

    <p>1234</p>
    <p>1 2 3 4</p>
    <p>1      2        3         4</p>
    <p>1
             2
             3
             4
    </p>


</body>
</html>